Shen Wan Shan( (沈万山) was a noble man during of the Yuan Dynasty and at the beginning of the Ming Dynasty.
According to the legend, he was a fisherman on both sides of Qin and Huai River. One day, Shen Wan San saw a person caught a bag of frogs and was preparing to cook and eat them. He bought the frogs and released them into a pond in the vicinity.
In the evening, Shen Wan San was suddenly awaken by noisy croaking of the frogs. He got out and had a look only to find that the frogs released by him were surrounding a pot, hence, he took the pot into his house.
When a golden hair pin would drop into the pot, the pot would magically filled with full of golden hair-pins. When a silver ingot was to drop into the pot, the pot would magically filled with full of silver ingots.
It was thus known as the Treasure Pot.
Later, people worshiped Shen Wan San as God Of Gold.
Take Note:I've not seen any Taoist Medium in trance of Shen Wan Shan (沈万山) Deity. You may like to buy a consecrated Statue of Shen Wan Shan (沈万山) by a Taoist Master/Priest >> Consecration of Taoist Deity Statue. Then you can "Shake A Cup" of Numbers while facing Shen Wan Shan (沈万山) Statue.